Development of an optical sensor based on QD@MIP for the detection of sulfadiazine in samples of animal products | [Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts) • 2022]

Author(s):

1. Bianca Mortari: Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil; bNational Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil

2. Sabir Khan: Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970 Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM),Araraquara, SP, Brazil

3. Ademar Wong: Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP),14801-970 Araraquara, SP,Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM),Araraquara, SP,Brazil

4. Maria del Pilar Taboada Sotomayor: Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP),14801-970 Araraquara, SP,Brazi; lNational Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM),Araraquara, SP,Brazil

Abstract:

The pharmaceutical industry has great progress in the world’s economy, also having great development in recent decades. The drugs application is very important for the development of the quality of life of people and animals, but it is also important to emphasize that unregulated and improper consumption of these drugs, especially in farming industries, generates polluting residues in animal products, which can serious causes to human and animal health. The development of recent monitoring techniques and the fabrication of smart materials that detect the presence of these emerging contaminants is very important, being efficient methods that have low cost, good selectivity, and high durability. Optical materials are used for the detection of sulfadiazine antibiotics through the fluorescence technique. Quantum Dots (QD) semiconductors based on CdTe coated with molecularly imprinted polymers (MIPs) combined in a core@shell format (QD@MIP) are used as probes for monitoring, detection, and quantification of this drug. The measurements were obtained by altering the quantum dot fluorescence through quenching, of sulfadiazine in which the fluorescence intensity of the QD@Shell is reduced, as the analyte is adsorbed, allowing quantitative measurements. In addition, measurement parameters are also optimized to obtain better results, such as pH, retention time, repeatability, reproducibility, and selectivity. Recovery experiments were carried out in spiked samples of animal derivatives such as milk, eggs, and honey.

Page(s): 0-0

DOI: DOI not available

Published: Journal: Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts), Volume: 0, Issue: 0, Year: 2022

Keywords:

quantum dots , Fluorescence , quenching , sulfadiazine , molecularly imprinted polymer

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views